21681460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1483}}^1$

素因数の和:1552

約数の個数: 48

約数和(自身を含む): 49363776

約数和(自身を除く): 27682316

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 430, 731, 860, 1462, 1483, 2924, 2966, 3655, 5932, 7310, 7415, 14620, 14830, 25211, 29660, 50422, 63769, 100844, 126055, 127538, 252110, 255076, 318845, 504220, 637690, 1084073, 1275380, 2168146, 4336292, 5420365, 10840730, 21681460]

約数ペア:

[(1, 21681460), (2, 10840730), (4, 5420365), (5, 4336292), (10, 2168146), (17, 1275380), (20, 1084073), (34, 637690), (43, 504220), (68, 318845), (85, 255076), (86, 252110), (170, 127538), (172, 126055), (215, 100844), (340, 63769), (430, 50422), (731, 29660), (860, 25211), (1462, 14830), (1483, 14620), (2924, 7415), (2966, 7310), (3655, 5932)]