20719566

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{569}}^1$

素因数の和:618

約数の個数: 72

約数和(自身を含む): 54596880

約数和(自身を除く): 33877314

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 34, 42, 51, 63, 102, 119, 126, 153, 238, 289, 306, 357, 569, 578, 714, 867, 1071, 1138, 1707, 1734, 2023, 2142, 2601, 3414, 3983, 4046, 5121, 5202, 6069, 7966, 9673, 10242, 11949, 12138, 18207, 19346, 23898, 29019, 35847, 36414, 58038, 67711, 71694, 87057, 135422, 164441, 174114, 203133, 328882, 406266, 493323, 609399, 986646, 1151087, 1218798, 1479969, 2302174, 2959938, 3453261, 6906522, 10359783, 20719566]

約数ペア:

[(1, 20719566), (2, 10359783), (3, 6906522), (6, 3453261), (7, 2959938), (9, 2302174), (14, 1479969), (17, 1218798), (18, 1151087), (21, 986646), (34, 609399), (42, 493323), (51, 406266), (63, 328882), (102, 203133), (119, 174114), (126, 164441), (153, 135422), (238, 87057), (289, 71694), (306, 67711), (357, 58038), (569, 36414), (578, 35847), (714, 29019), (867, 23898), (1071, 19346), (1138, 18207), (1707, 12138), (1734, 11949), (2023, 10242), (2142, 9673), (2601, 7966), (3414, 6069), (3983, 5202), (4046, 5121)]