21258330

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{571}}^1$

素因数の和:671

約数の個数: 64

約数和(自身を含む): 54857088

約数和(自身を除く): 33598758

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 73, 85, 102, 146, 170, 219, 255, 365, 438, 510, 571, 730, 1095, 1142, 1241, 1713, 2190, 2482, 2855, 3426, 3723, 5710, 6205, 7446, 8565, 9707, 12410, 17130, 18615, 19414, 29121, 37230, 41683, 48535, 58242, 83366, 97070, 125049, 145605, 208415, 250098, 291210, 416830, 625245, 708611, 1250490, 1417222, 2125833, 3543055, 4251666, 7086110, 10629165, 21258330]

約数ペア:

[(1, 21258330), (2, 10629165), (3, 7086110), (5, 4251666), (6, 3543055), (10, 2125833), (15, 1417222), (17, 1250490), (30, 708611), (34, 625245), (51, 416830), (73, 291210), (85, 250098), (102, 208415), (146, 145605), (170, 125049), (219, 97070), (255, 83366), (365, 58242), (438, 48535), (510, 41683), (571, 37230), (730, 29121), (1095, 19414), (1142, 18615), (1241, 17130), (1713, 12410), (2190, 9707), (2482, 8565), (2855, 7446), (3426, 6205), (3723, 5710)]