21549800

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:195

約数の個数: 96

約数和(自身を含む): 54237600

約数和(自身を除く): 32687800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 53, 76, 95, 100, 106, 107, 152, 190, 200, 212, 214, 265, 380, 424, 428, 475, 530, 535, 760, 856, 950, 1007, 1060, 1070, 1325, 1900, 2014, 2033, 2120, 2140, 2650, 2675, 3800, 4028, 4066, 4280, 5035, 5300, 5350, 5671, 8056, 8132, 10070, 10165, 10600, 10700, 11342, 16264, 20140, 20330, 21400, 22684, 25175, 28355, 40280, 40660, 45368, 50350, 50825, 56710, 81320, 100700, 101650, 107749, 113420, 141775, 201400, 203300, 215498, 226840, 283550, 406600, 430996, 538745, 567100, 861992, 1077490, 1134200, 2154980, 2693725, 4309960, 5387450, 10774900, 21549800]

約数ペア:

[(1, 21549800), (2, 10774900), (4, 5387450), (5, 4309960), (8, 2693725), (10, 2154980), (19, 1134200), (20, 1077490), (25, 861992), (38, 567100), (40, 538745), (50, 430996), (53, 406600), (76, 283550), (95, 226840), (100, 215498), (106, 203300), (107, 201400), (152, 141775), (190, 113420), (200, 107749), (212, 101650), (214, 100700), (265, 81320), (380, 56710), (424, 50825), (428, 50350), (475, 45368), (530, 40660), (535, 40280), (760, 28355), (856, 25175), (950, 22684), (1007, 21400), (1060, 20330), (1070, 20140), (1325, 16264), (1900, 11342), (2014, 10700), (2033, 10600), (2120, 10165), (2140, 10070), (2650, 8132), (2675, 8056), (3800, 5671), (4028, 5350), (4066, 5300), (4280, 5035)]