21828170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{83}}^1$

素因数の和:144

約数の個数: 96

約数和(自身を含む): 51988608

約数和(自身を除く): 30160438

約数列:

[1, 2, 5, 7, 10, 13, 14, 17, 26, 34, 35, 65, 70, 83, 85, 91, 119, 130, 166, 170, 182, 221, 238, 289, 415, 442, 455, 578, 581, 595, 830, 910, 1079, 1105, 1162, 1190, 1411, 1445, 1547, 2023, 2158, 2210, 2822, 2890, 2905, 3094, 3757, 4046, 5395, 5810, 7055, 7514, 7553, 7735, 9877, 10115, 10790, 14110, 15106, 15470, 18343, 18785, 19754, 20230, 23987, 26299, 36686, 37570, 37765, 47974, 49385, 52598, 75530, 91715, 98770, 119935, 128401, 131495, 167909, 183430, 239870, 256802, 262990, 311831, 335818, 623662, 642005, 839545, 1284010, 1559155, 1679090, 2182817, 3118310, 4365634, 10914085, 21828170]

約数ペア:

[(1, 21828170), (2, 10914085), (5, 4365634), (7, 3118310), (10, 2182817), (13, 1679090), (14, 1559155), (17, 1284010), (26, 839545), (34, 642005), (35, 623662), (65, 335818), (70, 311831), (83, 262990), (85, 256802), (91, 239870), (119, 183430), (130, 167909), (166, 131495), (170, 128401), (182, 119935), (221, 98770), (238, 91715), (289, 75530), (415, 52598), (442, 49385), (455, 47974), (578, 37765), (581, 37570), (595, 36686), (830, 26299), (910, 23987), (1079, 20230), (1105, 19754), (1162, 18785), (1190, 18343), (1411, 15470), (1445, 15106), (1547, 14110), (2023, 10790), (2158, 10115), (2210, 9877), (2822, 7735), (2890, 7553), (2905, 7514), (3094, 7055), (3757, 5810), (4046, 5395)]