21638652

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:219

約数の個数: 96

約数和(自身を含む): 60662784

約数和(自身を除く): 39024132

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 41, 42, 61, 82, 84, 103, 122, 123, 164, 183, 206, 244, 246, 287, 309, 366, 412, 427, 492, 574, 618, 721, 732, 854, 861, 1148, 1236, 1281, 1442, 1708, 1722, 2163, 2501, 2562, 2884, 3444, 4223, 4326, 5002, 5124, 6283, 7503, 8446, 8652, 10004, 12566, 12669, 15006, 16892, 17507, 18849, 25132, 25338, 29561, 30012, 35014, 37698, 43981, 50676, 52521, 59122, 70028, 75396, 87962, 88683, 105042, 118244, 131943, 175924, 177366, 210084, 257603, 263886, 354732, 515206, 527772, 772809, 1030412, 1545618, 1803221, 3091236, 3606442, 5409663, 7212884, 10819326, 21638652]

約数ペア:

[(1, 21638652), (2, 10819326), (3, 7212884), (4, 5409663), (6, 3606442), (7, 3091236), (12, 1803221), (14, 1545618), (21, 1030412), (28, 772809), (41, 527772), (42, 515206), (61, 354732), (82, 263886), (84, 257603), (103, 210084), (122, 177366), (123, 175924), (164, 131943), (183, 118244), (206, 105042), (244, 88683), (246, 87962), (287, 75396), (309, 70028), (366, 59122), (412, 52521), (427, 50676), (492, 43981), (574, 37698), (618, 35014), (721, 30012), (732, 29561), (854, 25338), (861, 25132), (1148, 18849), (1236, 17507), (1281, 16892), (1442, 15006), (1708, 12669), (1722, 12566), (2163, 10004), (2501, 8652), (2562, 8446), (2884, 7503), (3444, 6283), (4223, 5124), (4326, 5002)]