20626998

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 49876992

約数和(自身を除く): 29249994

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 131, 138, 161, 163, 262, 322, 326, 393, 483, 489, 786, 917, 966, 978, 1141, 1834, 2282, 2751, 3013, 3423, 3749, 5502, 6026, 6846, 7498, 9039, 11247, 18078, 21091, 21353, 22494, 26243, 42182, 42706, 52486, 63273, 64059, 78729, 126546, 128118, 149471, 157458, 298942, 448413, 491119, 896826, 982238, 1473357, 2946714, 3437833, 6875666, 10313499, 20626998]

約数ペア:

[(1, 20626998), (2, 10313499), (3, 6875666), (6, 3437833), (7, 2946714), (14, 1473357), (21, 982238), (23, 896826), (42, 491119), (46, 448413), (69, 298942), (131, 157458), (138, 149471), (161, 128118), (163, 126546), (262, 78729), (322, 64059), (326, 63273), (393, 52486), (483, 42706), (489, 42182), (786, 26243), (917, 22494), (966, 21353), (978, 21091), (1141, 18078), (1834, 11247), (2282, 9039), (2751, 7498), (3013, 6846), (3423, 6026), (3749, 5502)]