21670860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:295

約数の個数: 96

約数和(自身を含む): 63995904

約数和(自身を除く): 42325044

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 61, 62, 93, 122, 124, 155, 183, 186, 191, 244, 305, 310, 366, 372, 382, 465, 573, 610, 620, 732, 764, 915, 930, 955, 1146, 1220, 1830, 1860, 1891, 1910, 2292, 2865, 3660, 3782, 3820, 5673, 5730, 5921, 7564, 9455, 11346, 11460, 11651, 11842, 17763, 18910, 22692, 23302, 23684, 28365, 29605, 34953, 35526, 37820, 46604, 56730, 58255, 59210, 69906, 71052, 88815, 113460, 116510, 118420, 139812, 174765, 177630, 233020, 349530, 355260, 361181, 699060, 722362, 1083543, 1444724, 1805905, 2167086, 3611810, 4334172, 5417715, 7223620, 10835430, 21670860]

約数ペア:

[(1, 21670860), (2, 10835430), (3, 7223620), (4, 5417715), (5, 4334172), (6, 3611810), (10, 2167086), (12, 1805905), (15, 1444724), (20, 1083543), (30, 722362), (31, 699060), (60, 361181), (61, 355260), (62, 349530), (93, 233020), (122, 177630), (124, 174765), (155, 139812), (183, 118420), (186, 116510), (191, 113460), (244, 88815), (305, 71052), (310, 69906), (366, 59210), (372, 58255), (382, 56730), (465, 46604), (573, 37820), (610, 35526), (620, 34953), (732, 29605), (764, 28365), (915, 23684), (930, 23302), (955, 22692), (1146, 18910), (1220, 17763), (1830, 11842), (1860, 11651), (1891, 11460), (1910, 11346), (2292, 9455), (2865, 7564), (3660, 5921), (3782, 5730), (3820, 5673)]