20996935911

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{4139}}^1$

素因数の和:4570

約数の個数: 80

約数和(自身を含む): 37510387200

約数和(自身を除く): 16513451289

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 81, 161, 189, 207, 389, 483, 567, 621, 1167, 1449, 1863, 2723, 3501, 4139, 4347, 8169, 8947, 10503, 12417, 13041, 24507, 26841, 28973, 31509, 37251, 62629, 73521, 80523, 86919, 95197, 111753, 187887, 220563, 241569, 260757, 285591, 335259, 563661, 666379, 724707, 782271, 856773, 1610071, 1690983, 1999137, 2346813, 2570319, 4830213, 5072949, 5997411, 7710957, 11270497, 14490639, 17992233, 33811491, 37031633, 43471917, 53976699, 101434473, 111094899, 130415751, 259221431, 304303419, 333284697, 777664293, 912910257, 999854091, 2332992879, 2999562273, 6998978637, 20996935911]

約数ペア:

[(1, 20996935911), (3, 6998978637), (7, 2999562273), (9, 2332992879), (21, 999854091), (23, 912910257), (27, 777664293), (63, 333284697), (69, 304303419), (81, 259221431), (161, 130415751), (189, 111094899), (207, 101434473), (389, 53976699), (483, 43471917), (567, 37031633), (621, 33811491), (1167, 17992233), (1449, 14490639), (1863, 11270497), (2723, 7710957), (3501, 5997411), (4139, 5072949), (4347, 4830213), (8169, 2570319), (8947, 2346813), (10503, 1999137), (12417, 1690983), (13041, 1610071), (24507, 856773), (26841, 782271), (28973, 724707), (31509, 666379), (37251, 563661), (62629, 335259), (73521, 285591), (80523, 260757), (86919, 241569), (95197, 220563), (111753, 187887)]