21088860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1423}}^1$

素因数の和:1467

約数の個数: 96

約数和(自身を含む): 66984960

約数和(自身を除く): 45896100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 19, 20, 26, 30, 38, 39, 52, 57, 60, 65, 76, 78, 95, 114, 130, 156, 190, 195, 228, 247, 260, 285, 380, 390, 494, 570, 741, 780, 988, 1140, 1235, 1423, 1482, 2470, 2846, 2964, 3705, 4269, 4940, 5692, 7115, 7410, 8538, 14230, 14820, 17076, 18499, 21345, 27037, 28460, 36998, 42690, 54074, 55497, 73996, 81111, 85380, 92495, 108148, 110994, 135185, 162222, 184990, 221988, 270370, 277485, 324444, 351481, 369980, 405555, 540740, 554970, 702962, 811110, 1054443, 1109940, 1405924, 1622220, 1757405, 2108886, 3514810, 4217772, 5272215, 7029620, 10544430, 21088860]

約数ペア:

[(1, 21088860), (2, 10544430), (3, 7029620), (4, 5272215), (5, 4217772), (6, 3514810), (10, 2108886), (12, 1757405), (13, 1622220), (15, 1405924), (19, 1109940), (20, 1054443), (26, 811110), (30, 702962), (38, 554970), (39, 540740), (52, 405555), (57, 369980), (60, 351481), (65, 324444), (76, 277485), (78, 270370), (95, 221988), (114, 184990), (130, 162222), (156, 135185), (190, 110994), (195, 108148), (228, 92495), (247, 85380), (260, 81111), (285, 73996), (380, 55497), (390, 54074), (494, 42690), (570, 36998), (741, 28460), (780, 27037), (988, 21345), (1140, 18499), (1235, 17076), (1423, 14820), (1482, 14230), (2470, 8538), (2846, 7410), (2964, 7115), (3705, 5692), (4269, 4940)]