21606660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1$

素因数の和:362

約数の個数: 144

約数和(自身を含む): 72648576

約数和(自身を除く): 51041916

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 23, 30, 34, 36, 45, 46, 51, 60, 68, 69, 85, 90, 92, 102, 115, 138, 153, 170, 180, 204, 207, 230, 255, 276, 306, 307, 340, 345, 391, 414, 460, 510, 612, 614, 690, 765, 782, 828, 921, 1020, 1035, 1173, 1228, 1380, 1530, 1535, 1564, 1842, 1955, 2070, 2346, 2763, 3060, 3070, 3519, 3684, 3910, 4140, 4605, 4692, 5219, 5526, 5865, 6140, 7038, 7061, 7820, 9210, 10438, 11052, 11730, 13815, 14076, 14122, 15657, 17595, 18420, 20876, 21183, 23460, 26095, 27630, 28244, 31314, 35190, 35305, 42366, 46971, 52190, 55260, 62628, 63549, 70380, 70610, 78285, 84732, 93942, 104380, 105915, 120037, 127098, 141220, 156570, 187884, 211830, 234855, 240074, 254196, 313140, 317745, 360111, 423660, 469710, 480148, 600185, 635490, 720222, 939420, 1080333, 1200370, 1270980, 1440444, 1800555, 2160666, 2400740, 3601110, 4321332, 5401665, 7202220, 10803330, 21606660]

約数ペア:

[(1, 21606660), (2, 10803330), (3, 7202220), (4, 5401665), (5, 4321332), (6, 3601110), (9, 2400740), (10, 2160666), (12, 1800555), (15, 1440444), (17, 1270980), (18, 1200370), (20, 1080333), (23, 939420), (30, 720222), (34, 635490), (36, 600185), (45, 480148), (46, 469710), (51, 423660), (60, 360111), (68, 317745), (69, 313140), (85, 254196), (90, 240074), (92, 234855), (102, 211830), (115, 187884), (138, 156570), (153, 141220), (170, 127098), (180, 120037), (204, 105915), (207, 104380), (230, 93942), (255, 84732), (276, 78285), (306, 70610), (307, 70380), (340, 63549), (345, 62628), (391, 55260), (414, 52190), (460, 46971), (510, 42366), (612, 35305), (614, 35190), (690, 31314), (765, 28244), (782, 27630), (828, 26095), (921, 23460), (1020, 21183), (1035, 20876), (1173, 18420), (1228, 17595), (1380, 15657), (1530, 14122), (1535, 14076), (1564, 13815), (1842, 11730), (1955, 11052), (2070, 10438), (2346, 9210), (2763, 7820), (3060, 7061), (3070, 7038), (3519, 6140), (3684, 5865), (3910, 5526), (4140, 5219), (4605, 4692)]