20395746

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{683}}^1$

素因数の和:780

約数の個数: 64

約数和(自身を含む): 52531200

約数和(自身を除く): 32135454

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 79, 126, 158, 189, 237, 378, 474, 553, 683, 711, 1106, 1366, 1422, 1659, 2049, 2133, 3318, 4098, 4266, 4781, 4977, 6147, 9562, 9954, 12294, 14343, 14931, 18441, 28686, 29862, 36882, 43029, 53957, 86058, 107914, 129087, 161871, 258174, 323742, 377699, 485613, 755398, 971226, 1133097, 1456839, 2266194, 2913678, 3399291, 6798582, 10197873, 20395746]

約数ペア:

[(1, 20395746), (2, 10197873), (3, 6798582), (6, 3399291), (7, 2913678), (9, 2266194), (14, 1456839), (18, 1133097), (21, 971226), (27, 755398), (42, 485613), (54, 377699), (63, 323742), (79, 258174), (126, 161871), (158, 129087), (189, 107914), (237, 86058), (378, 53957), (474, 43029), (553, 36882), (683, 29862), (711, 28686), (1106, 18441), (1366, 14931), (1422, 14343), (1659, 12294), (2049, 9954), (2133, 9562), (3318, 6147), (4098, 4977), (4266, 4781)]