21755370

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{613}}^1$

素因数の和:656

約数の個数: 96

約数和(自身を含む): 64720512

約数和(自身を除く): 42965142

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 169, 182, 195, 210, 273, 338, 390, 455, 507, 546, 613, 845, 910, 1014, 1183, 1226, 1365, 1690, 1839, 2366, 2535, 2730, 3065, 3549, 3678, 4291, 5070, 5915, 6130, 7098, 7969, 8582, 9195, 11830, 12873, 15938, 17745, 18390, 21455, 23907, 25746, 35490, 39845, 42910, 47814, 55783, 64365, 79690, 103597, 111566, 119535, 128730, 167349, 207194, 239070, 278915, 310791, 334698, 517985, 557830, 621582, 725179, 836745, 1035970, 1450358, 1553955, 1673490, 2175537, 3107910, 3625895, 4351074, 7251790, 10877685, 21755370]

約数ペア:

[(1, 21755370), (2, 10877685), (3, 7251790), (5, 4351074), (6, 3625895), (7, 3107910), (10, 2175537), (13, 1673490), (14, 1553955), (15, 1450358), (21, 1035970), (26, 836745), (30, 725179), (35, 621582), (39, 557830), (42, 517985), (65, 334698), (70, 310791), (78, 278915), (91, 239070), (105, 207194), (130, 167349), (169, 128730), (182, 119535), (195, 111566), (210, 103597), (273, 79690), (338, 64365), (390, 55783), (455, 47814), (507, 42910), (546, 39845), (613, 35490), (845, 25746), (910, 23907), (1014, 21455), (1183, 18390), (1226, 17745), (1365, 15938), (1690, 12873), (1839, 11830), (2366, 9195), (2535, 8582), (2730, 7969), (3065, 7098), (3549, 6130), (3678, 5915), (4291, 5070)]