21358082748

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1\times {\mathrm{1997}}^1$

素因数の和:2527

約数の個数: 96

約数和(自身を含む): 52410576960

約数和(自身を除く): 31052494212

約数列:

[1, 2, 3, 4, 6, 12, 29, 58, 73, 87, 116, 146, 174, 219, 292, 348, 421, 438, 842, 876, 1263, 1684, 1997, 2117, 2526, 3994, 4234, 5052, 5991, 6351, 7988, 8468, 11982, 12209, 12702, 23964, 24418, 25404, 30733, 36627, 48836, 57913, 61466, 73254, 92199, 115826, 122932, 145781, 146508, 173739, 184398, 231652, 291562, 347478, 368796, 437343, 583124, 694956, 840737, 874686, 891257, 1681474, 1749372, 1782514, 2522211, 2673771, 3362948, 3565028, 4227649, 5044422, 5347542, 8455298, 10088844, 10695084, 12682947, 16910596, 24381373, 25365894, 48762746, 50731788, 61373801, 73144119, 97525492, 122747602, 146288238, 184121403, 245495204, 292576476, 368242806, 736485612, 1779840229, 3559680458, 5339520687, 7119360916, 10679041374, 21358082748]

約数ペア:

[(1, 21358082748), (2, 10679041374), (3, 7119360916), (4, 5339520687), (6, 3559680458), (12, 1779840229), (29, 736485612), (58, 368242806), (73, 292576476), (87, 245495204), (116, 184121403), (146, 146288238), (174, 122747602), (219, 97525492), (292, 73144119), (348, 61373801), (421, 50731788), (438, 48762746), (842, 25365894), (876, 24381373), (1263, 16910596), (1684, 12682947), (1997, 10695084), (2117, 10088844), (2526, 8455298), (3994, 5347542), (4234, 5044422), (5052, 4227649), (5991, 3565028), (6351, 3362948), (7988, 2673771), (8468, 2522211), (11982, 1782514), (12209, 1749372), (12702, 1681474), (23964, 891257), (24418, 874686), (25404, 840737), (30733, 694956), (36627, 583124), (48836, 437343), (57913, 368796), (61466, 347478), (73254, 291562), (92199, 231652), (115826, 184398), (122932, 173739), (145781, 146508)]