21336525

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:96

約数の個数: 144

約数和(自身を含む): 49520640

約数和(自身を除く): 28184115

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 23, 25, 31, 35, 45, 57, 63, 69, 75, 93, 95, 105, 115, 133, 155, 161, 171, 175, 207, 217, 225, 279, 285, 315, 345, 399, 437, 465, 475, 483, 525, 575, 589, 651, 665, 713, 775, 805, 855, 1035, 1085, 1197, 1311, 1395, 1425, 1449, 1575, 1725, 1767, 1953, 1995, 2139, 2185, 2325, 2415, 2945, 3059, 3255, 3325, 3565, 3933, 4025, 4123, 4275, 4991, 5175, 5301, 5425, 5985, 6417, 6555, 6975, 7245, 8835, 9177, 9765, 9975, 10695, 10925, 12075, 12369, 13547, 14725, 14973, 15295, 16275, 17825, 19665, 20615, 24955, 26505, 27531, 29925, 32085, 32775, 36225, 37107, 40641, 44175, 44919, 45885, 48825, 53475, 61845, 67735, 74865, 76475, 94829, 98325, 103075, 121923, 124775, 132525, 137655, 160425, 185535, 203205, 224595, 229425, 284487, 309225, 338675, 374325, 474145, 609615, 688275, 853461, 927675, 1016025, 1122975, 1422435, 2370725, 3048075, 4267305, 7112175, 21336525]

約数ペア:

[(1, 21336525), (3, 7112175), (5, 4267305), (7, 3048075), (9, 2370725), (15, 1422435), (19, 1122975), (21, 1016025), (23, 927675), (25, 853461), (31, 688275), (35, 609615), (45, 474145), (57, 374325), (63, 338675), (69, 309225), (75, 284487), (93, 229425), (95, 224595), (105, 203205), (115, 185535), (133, 160425), (155, 137655), (161, 132525), (171, 124775), (175, 121923), (207, 103075), (217, 98325), (225, 94829), (279, 76475), (285, 74865), (315, 67735), (345, 61845), (399, 53475), (437, 48825), (465, 45885), (475, 44919), (483, 44175), (525, 40641), (575, 37107), (589, 36225), (651, 32775), (665, 32085), (713, 29925), (775, 27531), (805, 26505), (855, 24955), (1035, 20615), (1085, 19665), (1197, 17825), (1311, 16275), (1395, 15295), (1425, 14973), (1449, 14725), (1575, 13547), (1725, 12369), (1767, 12075), (1953, 10925), (1995, 10695), (2139, 9975), (2185, 9765), (2325, 9177), (2415, 8835), (2945, 7245), (3059, 6975), (3255, 6555), (3325, 6417), (3565, 5985), (3933, 5425), (4025, 5301), (4123, 5175), (4275, 4991)]