21330988

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1093}}^1$

素因数の和:1162

約数の個数: 48

約数和(自身を含む): 46315584

約数和(自身を除く): 24984596

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 41, 68, 82, 119, 164, 238, 287, 476, 574, 697, 1093, 1148, 1394, 2186, 2788, 4372, 4879, 7651, 9758, 15302, 18581, 19516, 30604, 37162, 44813, 74324, 89626, 130067, 179252, 260134, 313691, 520268, 627382, 761821, 1254764, 1523642, 3047284, 5332747, 10665494, 21330988]

約数ペア:

[(1, 21330988), (2, 10665494), (4, 5332747), (7, 3047284), (14, 1523642), (17, 1254764), (28, 761821), (34, 627382), (41, 520268), (68, 313691), (82, 260134), (119, 179252), (164, 130067), (238, 89626), (287, 74324), (476, 44813), (574, 37162), (697, 30604), (1093, 19516), (1148, 18581), (1394, 15302), (2186, 9758), (2788, 7651), (4372, 4879)]