215018748

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{19843}}^1$

素因数の和:19903

約数の個数: 72

約数和(自身を含む): 635643008

約数和(自身を除く): 420624260

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 43, 63, 84, 86, 126, 129, 172, 252, 258, 301, 387, 516, 602, 774, 903, 1204, 1548, 1806, 2709, 3612, 5418, 10836, 19843, 39686, 59529, 79372, 119058, 138901, 178587, 238116, 277802, 357174, 416703, 555604, 714348, 833406, 853249, 1250109, 1666812, 1706498, 2500218, 2559747, 3412996, 5000436, 5119494, 5972743, 7679241, 10238988, 11945486, 15358482, 17918229, 23890972, 30716964, 35836458, 53754687, 71672916, 107509374, 215018748]

約数ペア:

[(1, 215018748), (2, 107509374), (3, 71672916), (4, 53754687), (6, 35836458), (7, 30716964), (9, 23890972), (12, 17918229), (14, 15358482), (18, 11945486), (21, 10238988), (28, 7679241), (36, 5972743), (42, 5119494), (43, 5000436), (63, 3412996), (84, 2559747), (86, 2500218), (126, 1706498), (129, 1666812), (172, 1250109), (252, 853249), (258, 833406), (301, 714348), (387, 555604), (516, 416703), (602, 357174), (774, 277802), (903, 238116), (1204, 178587), (1548, 138901), (1806, 119058), (2709, 79372), (3612, 59529), (5418, 39686), (10836, 19843)]