21554100

素因数分解:

$2^2\times 3^5\times 5^2\times {\mathrm{887}}^1$

素因数の和:916

約数の個数: 108

約数和(自身を含む): 70141344

約数和(自身を除く): 48587244

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 243, 270, 300, 324, 405, 450, 486, 540, 675, 810, 887, 900, 972, 1215, 1350, 1620, 1774, 2025, 2430, 2661, 2700, 3548, 4050, 4435, 4860, 5322, 6075, 7983, 8100, 8870, 10644, 12150, 13305, 15966, 17740, 22175, 23949, 24300, 26610, 31932, 39915, 44350, 47898, 53220, 66525, 71847, 79830, 88700, 95796, 119745, 133050, 143694, 159660, 199575, 215541, 239490, 266100, 287388, 359235, 399150, 431082, 478980, 598725, 718470, 798300, 862164, 1077705, 1197450, 1436940, 1796175, 2155410, 2394900, 3592350, 4310820, 5388525, 7184700, 10777050, 21554100]

約数ペア:

[(1, 21554100), (2, 10777050), (3, 7184700), (4, 5388525), (5, 4310820), (6, 3592350), (9, 2394900), (10, 2155410), (12, 1796175), (15, 1436940), (18, 1197450), (20, 1077705), (25, 862164), (27, 798300), (30, 718470), (36, 598725), (45, 478980), (50, 431082), (54, 399150), (60, 359235), (75, 287388), (81, 266100), (90, 239490), (100, 215541), (108, 199575), (135, 159660), (150, 143694), (162, 133050), (180, 119745), (225, 95796), (243, 88700), (270, 79830), (300, 71847), (324, 66525), (405, 53220), (450, 47898), (486, 44350), (540, 39915), (675, 31932), (810, 26610), (887, 24300), (900, 23949), (972, 22175), (1215, 17740), (1350, 15966), (1620, 13305), (1774, 12150), (2025, 10644), (2430, 8870), (2661, 8100), (2700, 7983), (3548, 6075), (4050, 5322), (4435, 4860)]