20021744

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{983}}^1$

素因数の和:1077

約数の個数: 40

約数和(自身を含む): 41485440

約数和(自身を除く): 21463696

約数列:

[1, 2, 4, 8, 16, 19, 38, 67, 76, 134, 152, 268, 304, 536, 983, 1072, 1273, 1966, 2546, 3932, 5092, 7864, 10184, 15728, 18677, 20368, 37354, 65861, 74708, 131722, 149416, 263444, 298832, 526888, 1053776, 1251359, 2502718, 5005436, 10010872, 20021744]

約数ペア:

[(1, 20021744), (2, 10010872), (4, 5005436), (8, 2502718), (16, 1251359), (19, 1053776), (38, 526888), (67, 298832), (76, 263444), (134, 149416), (152, 131722), (268, 74708), (304, 65861), (536, 37354), (983, 20368), (1072, 18677), (1273, 15728), (1966, 10184), (2546, 7864), (3932, 5092)]