21973980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{463}}^1$

素因数の和:595

約数の個数: 96

約数和(自身を含む): 71092224

約数和(自身を除く): 49118244

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 113, 140, 210, 226, 339, 420, 452, 463, 565, 678, 791, 926, 1130, 1356, 1389, 1582, 1695, 1852, 2260, 2315, 2373, 2778, 3164, 3241, 3390, 3955, 4630, 4746, 5556, 6482, 6780, 6945, 7910, 9260, 9492, 9723, 11865, 12964, 13890, 15820, 16205, 19446, 23730, 27780, 32410, 38892, 47460, 48615, 52319, 64820, 97230, 104638, 156957, 194460, 209276, 261595, 313914, 366233, 523190, 627828, 732466, 784785, 1046380, 1098699, 1464932, 1569570, 1831165, 2197398, 3139140, 3662330, 4394796, 5493495, 7324660, 10986990, 21973980]

約数ペア:

[(1, 21973980), (2, 10986990), (3, 7324660), (4, 5493495), (5, 4394796), (6, 3662330), (7, 3139140), (10, 2197398), (12, 1831165), (14, 1569570), (15, 1464932), (20, 1098699), (21, 1046380), (28, 784785), (30, 732466), (35, 627828), (42, 523190), (60, 366233), (70, 313914), (84, 261595), (105, 209276), (113, 194460), (140, 156957), (210, 104638), (226, 97230), (339, 64820), (420, 52319), (452, 48615), (463, 47460), (565, 38892), (678, 32410), (791, 27780), (926, 23730), (1130, 19446), (1356, 16205), (1389, 15820), (1582, 13890), (1695, 12964), (1852, 11865), (2260, 9723), (2315, 9492), (2373, 9260), (2778, 7910), (3164, 6945), (3241, 6780), (3390, 6482), (3955, 5556), (4630, 4746)]