18970884

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 50319360

約数和(自身を除く): 31348476

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 89, 93, 124, 178, 186, 191, 267, 279, 356, 372, 382, 534, 558, 573, 764, 801, 1068, 1116, 1146, 1602, 1719, 2292, 2759, 3204, 3438, 5518, 5921, 6876, 8277, 11036, 11842, 16554, 16999, 17763, 23684, 24831, 33108, 33998, 35526, 49662, 50997, 53289, 67996, 71052, 99324, 101994, 106578, 152991, 203988, 213156, 305982, 526969, 611964, 1053938, 1580907, 2107876, 3161814, 4742721, 6323628, 9485442, 18970884]

約数ペア:

[(1, 18970884), (2, 9485442), (3, 6323628), (4, 4742721), (6, 3161814), (9, 2107876), (12, 1580907), (18, 1053938), (31, 611964), (36, 526969), (62, 305982), (89, 213156), (93, 203988), (124, 152991), (178, 106578), (186, 101994), (191, 99324), (267, 71052), (279, 67996), (356, 53289), (372, 50997), (382, 49662), (534, 35526), (558, 33998), (573, 33108), (764, 24831), (801, 23684), (1068, 17763), (1116, 16999), (1146, 16554), (1602, 11842), (1719, 11036), (2292, 8277), (2759, 6876), (3204, 5921), (3438, 5518)]