20918196

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:390

約数の個数: 96

約数和(自身を含む): 59834880

約数和(自身を除く): 38916684

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 47, 52, 54, 78, 94, 108, 117, 141, 156, 188, 234, 282, 317, 351, 423, 468, 564, 611, 634, 702, 846, 951, 1222, 1268, 1269, 1404, 1692, 1833, 1902, 2444, 2538, 2853, 3666, 3804, 4121, 5076, 5499, 5706, 7332, 8242, 8559, 10998, 11412, 12363, 14899, 16484, 16497, 17118, 21996, 24726, 29798, 32994, 34236, 37089, 44697, 49452, 59596, 65988, 74178, 89394, 111267, 134091, 148356, 178788, 193687, 222534, 268182, 387374, 402273, 445068, 536364, 581061, 774748, 804546, 1162122, 1609092, 1743183, 2324244, 3486366, 5229549, 6972732, 10459098, 20918196]

約数ペア:

[(1, 20918196), (2, 10459098), (3, 6972732), (4, 5229549), (6, 3486366), (9, 2324244), (12, 1743183), (13, 1609092), (18, 1162122), (26, 804546), (27, 774748), (36, 581061), (39, 536364), (47, 445068), (52, 402273), (54, 387374), (78, 268182), (94, 222534), (108, 193687), (117, 178788), (141, 148356), (156, 134091), (188, 111267), (234, 89394), (282, 74178), (317, 65988), (351, 59596), (423, 49452), (468, 44697), (564, 37089), (611, 34236), (634, 32994), (702, 29798), (846, 24726), (951, 21996), (1222, 17118), (1268, 16497), (1269, 16484), (1404, 14899), (1692, 12363), (1833, 11412), (1902, 10998), (2444, 8559), (2538, 8242), (2853, 7332), (3666, 5706), (3804, 5499), (4121, 5076)]