21198780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1061}}^1$

素因数の和:1116

約数の個数: 96

約数和(自身を含む): 67798080

約数和(自身を除く): 46599300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 37, 45, 54, 60, 74, 90, 108, 111, 135, 148, 180, 185, 222, 270, 333, 370, 444, 540, 555, 666, 740, 999, 1061, 1110, 1332, 1665, 1998, 2122, 2220, 3183, 3330, 3996, 4244, 4995, 5305, 6366, 6660, 9549, 9990, 10610, 12732, 15915, 19098, 19980, 21220, 28647, 31830, 38196, 39257, 47745, 57294, 63660, 78514, 95490, 114588, 117771, 143235, 157028, 190980, 196285, 235542, 286470, 353313, 392570, 471084, 572940, 588855, 706626, 785140, 1059939, 1177710, 1413252, 1766565, 2119878, 2355420, 3533130, 4239756, 5299695, 7066260, 10599390, 21198780]

約数ペア:

[(1, 21198780), (2, 10599390), (3, 7066260), (4, 5299695), (5, 4239756), (6, 3533130), (9, 2355420), (10, 2119878), (12, 1766565), (15, 1413252), (18, 1177710), (20, 1059939), (27, 785140), (30, 706626), (36, 588855), (37, 572940), (45, 471084), (54, 392570), (60, 353313), (74, 286470), (90, 235542), (108, 196285), (111, 190980), (135, 157028), (148, 143235), (180, 117771), (185, 114588), (222, 95490), (270, 78514), (333, 63660), (370, 57294), (444, 47745), (540, 39257), (555, 38196), (666, 31830), (740, 28647), (999, 21220), (1061, 19980), (1110, 19098), (1332, 15915), (1665, 12732), (1998, 10610), (2122, 9990), (2220, 9549), (3183, 6660), (3330, 6366), (3996, 5305), (4244, 4995)]