21550100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1$

素因数の和:186

約数の個数: 108

約数和(自身を含む): 55759452

約数和(自身を除く): 34209352

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 65, 100, 110, 121, 130, 137, 143, 220, 242, 260, 274, 275, 286, 325, 484, 548, 550, 572, 605, 650, 685, 715, 1100, 1210, 1300, 1370, 1430, 1507, 1573, 1781, 2420, 2740, 2860, 3014, 3025, 3146, 3425, 3562, 3575, 6028, 6050, 6292, 6850, 7124, 7150, 7535, 7865, 8905, 12100, 13700, 14300, 15070, 15730, 16577, 17810, 19591, 30140, 31460, 33154, 35620, 37675, 39182, 39325, 44525, 66308, 75350, 78364, 78650, 82885, 89050, 97955, 150700, 157300, 165770, 178100, 195910, 215501, 331540, 391820, 414425, 431002, 489775, 828850, 862004, 979550, 1077505, 1657700, 1959100, 2155010, 4310020, 5387525, 10775050, 21550100]

約数ペア:

[(1, 21550100), (2, 10775050), (4, 5387525), (5, 4310020), (10, 2155010), (11, 1959100), (13, 1657700), (20, 1077505), (22, 979550), (25, 862004), (26, 828850), (44, 489775), (50, 431002), (52, 414425), (55, 391820), (65, 331540), (100, 215501), (110, 195910), (121, 178100), (130, 165770), (137, 157300), (143, 150700), (220, 97955), (242, 89050), (260, 82885), (274, 78650), (275, 78364), (286, 75350), (325, 66308), (484, 44525), (548, 39325), (550, 39182), (572, 37675), (605, 35620), (650, 33154), (685, 31460), (715, 30140), (1100, 19591), (1210, 17810), (1300, 16577), (1370, 15730), (1430, 15070), (1507, 14300), (1573, 13700), (1781, 12100), (2420, 8905), (2740, 7865), (2860, 7535), (3014, 7150), (3025, 7124), (3146, 6850), (3425, 6292), (3562, 6050), (3575, 6028)]