21098340

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:546

約数の個数: 96

約数和(自身を含む): 66528000

約数和(自身を除く): 45429660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 89, 90, 108, 135, 178, 180, 267, 270, 356, 439, 445, 534, 540, 801, 878, 890, 1068, 1317, 1335, 1602, 1756, 1780, 2195, 2403, 2634, 2670, 3204, 3951, 4005, 4390, 4806, 5268, 5340, 6585, 7902, 8010, 8780, 9612, 11853, 12015, 13170, 15804, 16020, 19755, 23706, 24030, 26340, 39071, 39510, 47412, 48060, 59265, 78142, 79020, 117213, 118530, 156284, 195355, 234426, 237060, 351639, 390710, 468852, 586065, 703278, 781420, 1054917, 1172130, 1406556, 1758195, 2109834, 2344260, 3516390, 4219668, 5274585, 7032780, 10549170, 21098340]

約数ペア:

[(1, 21098340), (2, 10549170), (3, 7032780), (4, 5274585), (5, 4219668), (6, 3516390), (9, 2344260), (10, 2109834), (12, 1758195), (15, 1406556), (18, 1172130), (20, 1054917), (27, 781420), (30, 703278), (36, 586065), (45, 468852), (54, 390710), (60, 351639), (89, 237060), (90, 234426), (108, 195355), (135, 156284), (178, 118530), (180, 117213), (267, 79020), (270, 78142), (356, 59265), (439, 48060), (445, 47412), (534, 39510), (540, 39071), (801, 26340), (878, 24030), (890, 23706), (1068, 19755), (1317, 16020), (1335, 15804), (1602, 13170), (1756, 12015), (1780, 11853), (2195, 9612), (2403, 8780), (2634, 8010), (2670, 7902), (3204, 6585), (3951, 5340), (4005, 5268), (4390, 4806)]