20842458

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{647}}^1$

素因数の和:731

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 31412262

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 59, 78, 91, 118, 177, 182, 273, 354, 413, 546, 647, 767, 826, 1239, 1294, 1534, 1941, 2301, 2478, 3882, 4529, 4602, 5369, 8411, 9058, 10738, 13587, 16107, 16822, 25233, 27174, 32214, 38173, 50466, 58877, 76346, 114519, 117754, 176631, 229038, 267211, 353262, 496249, 534422, 801633, 992498, 1488747, 1603266, 2977494, 3473743, 6947486, 10421229, 20842458]

約数ペア:

[(1, 20842458), (2, 10421229), (3, 6947486), (6, 3473743), (7, 2977494), (13, 1603266), (14, 1488747), (21, 992498), (26, 801633), (39, 534422), (42, 496249), (59, 353262), (78, 267211), (91, 229038), (118, 176631), (177, 117754), (182, 114519), (273, 76346), (354, 58877), (413, 50466), (546, 38173), (647, 32214), (767, 27174), (826, 25233), (1239, 16822), (1294, 16107), (1534, 13587), (1941, 10738), (2301, 9058), (2478, 8411), (3882, 5369), (4529, 4602)]