20937930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1451}}^1$

素因数の和:1511

約数の個数: 64

約数和(自身を含む): 55617408

約数和(自身を除く): 34679478

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 37, 39, 65, 74, 78, 111, 130, 185, 195, 222, 370, 390, 481, 555, 962, 1110, 1443, 1451, 2405, 2886, 2902, 4353, 4810, 7215, 7255, 8706, 14430, 14510, 18863, 21765, 37726, 43530, 53687, 56589, 94315, 107374, 113178, 161061, 188630, 268435, 282945, 322122, 536870, 565890, 697931, 805305, 1395862, 1610610, 2093793, 3489655, 4187586, 6979310, 10468965, 20937930]

約数ペア:

[(1, 20937930), (2, 10468965), (3, 6979310), (5, 4187586), (6, 3489655), (10, 2093793), (13, 1610610), (15, 1395862), (26, 805305), (30, 697931), (37, 565890), (39, 536870), (65, 322122), (74, 282945), (78, 268435), (111, 188630), (130, 161061), (185, 113178), (195, 107374), (222, 94315), (370, 56589), (390, 53687), (481, 43530), (555, 37726), (962, 21765), (1110, 18863), (1443, 14510), (1451, 14430), (2405, 8706), (2886, 7255), (2902, 7215), (4353, 4810)]