21799960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:197

約数の個数: 128

約数和(自身を含む): 62052480

約数和(自身を除く): 40252520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 53, 56, 65, 70, 91, 104, 106, 113, 130, 140, 182, 212, 226, 260, 265, 280, 364, 371, 424, 452, 455, 520, 530, 565, 689, 728, 742, 791, 904, 910, 1060, 1130, 1378, 1469, 1484, 1582, 1820, 1855, 2120, 2260, 2756, 2938, 2968, 3164, 3445, 3640, 3710, 3955, 4520, 4823, 5512, 5876, 5989, 6328, 6890, 7345, 7420, 7910, 9646, 10283, 11752, 11978, 13780, 14690, 14840, 15820, 19292, 20566, 23956, 24115, 27560, 29380, 29945, 31640, 38584, 41132, 41923, 47912, 48230, 51415, 58760, 59890, 77857, 82264, 83846, 96460, 102830, 119780, 155714, 167692, 192920, 205660, 209615, 239560, 311428, 335384, 389285, 411320, 419230, 544999, 622856, 778570, 838460, 1089998, 1557140, 1676920, 2179996, 2724995, 3114280, 4359992, 5449990, 10899980, 21799960]

約数ペア:

[(1, 21799960), (2, 10899980), (4, 5449990), (5, 4359992), (7, 3114280), (8, 2724995), (10, 2179996), (13, 1676920), (14, 1557140), (20, 1089998), (26, 838460), (28, 778570), (35, 622856), (40, 544999), (52, 419230), (53, 411320), (56, 389285), (65, 335384), (70, 311428), (91, 239560), (104, 209615), (106, 205660), (113, 192920), (130, 167692), (140, 155714), (182, 119780), (212, 102830), (226, 96460), (260, 83846), (265, 82264), (280, 77857), (364, 59890), (371, 58760), (424, 51415), (452, 48230), (455, 47912), (520, 41923), (530, 41132), (565, 38584), (689, 31640), (728, 29945), (742, 29380), (791, 27560), (904, 24115), (910, 23956), (1060, 20566), (1130, 19292), (1378, 15820), (1469, 14840), (1484, 14690), (1582, 13780), (1820, 11978), (1855, 11752), (2120, 10283), (2260, 9646), (2756, 7910), (2938, 7420), (2968, 7345), (3164, 6890), (3445, 6328), (3640, 5989), (3710, 5876), (3955, 5512), (4520, 4823)]