20503686

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 48854016

約数和(自身を除く): 28350330

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 61, 106, 122, 151, 159, 183, 302, 318, 366, 371, 427, 453, 742, 854, 906, 1057, 1113, 1281, 2114, 2226, 2562, 3171, 3233, 6342, 6466, 8003, 9211, 9699, 16006, 18422, 19398, 22631, 24009, 27633, 45262, 48018, 55266, 56021, 64477, 67893, 112042, 128954, 135786, 168063, 193431, 336126, 386862, 488183, 976366, 1464549, 2929098, 3417281, 6834562, 10251843, 20503686]

約数ペア:

[(1, 20503686), (2, 10251843), (3, 6834562), (6, 3417281), (7, 2929098), (14, 1464549), (21, 976366), (42, 488183), (53, 386862), (61, 336126), (106, 193431), (122, 168063), (151, 135786), (159, 128954), (183, 112042), (302, 67893), (318, 64477), (366, 56021), (371, 55266), (427, 48018), (453, 45262), (742, 27633), (854, 24009), (906, 22631), (1057, 19398), (1113, 18422), (1281, 16006), (2114, 9699), (2226, 9211), (2562, 8003), (3171, 6466), (3233, 6342)]