21615660

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1213}}^1$

素因数の和:1245

約数の個数: 120

約数和(自身を含む): 74034576

約数和(自身を除く): 52418916

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 81, 90, 99, 108, 110, 132, 135, 162, 165, 180, 198, 220, 270, 297, 324, 330, 396, 405, 495, 540, 594, 660, 810, 891, 990, 1188, 1213, 1485, 1620, 1782, 1980, 2426, 2970, 3564, 3639, 4455, 4852, 5940, 6065, 7278, 8910, 10917, 12130, 13343, 14556, 17820, 18195, 21834, 24260, 26686, 32751, 36390, 40029, 43668, 53372, 54585, 65502, 66715, 72780, 80058, 98253, 109170, 120087, 131004, 133430, 160116, 163755, 196506, 200145, 218340, 240174, 266860, 327510, 360261, 393012, 400290, 480348, 491265, 600435, 655020, 720522, 800580, 982530, 1080783, 1200870, 1441044, 1801305, 1965060, 2161566, 2401740, 3602610, 4323132, 5403915, 7205220, 10807830, 21615660]

約数ペア:

[(1, 21615660), (2, 10807830), (3, 7205220), (4, 5403915), (5, 4323132), (6, 3602610), (9, 2401740), (10, 2161566), (11, 1965060), (12, 1801305), (15, 1441044), (18, 1200870), (20, 1080783), (22, 982530), (27, 800580), (30, 720522), (33, 655020), (36, 600435), (44, 491265), (45, 480348), (54, 400290), (55, 393012), (60, 360261), (66, 327510), (81, 266860), (90, 240174), (99, 218340), (108, 200145), (110, 196506), (132, 163755), (135, 160116), (162, 133430), (165, 131004), (180, 120087), (198, 109170), (220, 98253), (270, 80058), (297, 72780), (324, 66715), (330, 65502), (396, 54585), (405, 53372), (495, 43668), (540, 40029), (594, 36390), (660, 32751), (810, 26686), (891, 24260), (990, 21834), (1188, 18195), (1213, 17820), (1485, 14556), (1620, 13343), (1782, 12130), (1980, 10917), (2426, 8910), (2970, 7278), (3564, 6065), (3639, 5940), (4455, 4852)]