19458702921

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4153}}^1\times {\mathrm{11743}}^1$

素因数の和:15925

約数の個数: 32

約数和(自身を含む): 31222128640

約数和(自身を除く): 11763425719

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 4153, 11743, 12459, 29071, 35229, 78907, 82201, 87213, 223117, 236721, 246603, 552349, 669351, 1561819, 1657047, 4685457, 48768679, 146306037, 341380753, 926604901, 1024142259, 2779814703, 6486234307, 19458702921]

約数ペア:

[(1, 19458702921), (3, 6486234307), (7, 2779814703), (19, 1024142259), (21, 926604901), (57, 341380753), (133, 146306037), (399, 48768679), (4153, 4685457), (11743, 1657047), (12459, 1561819), (29071, 669351), (35229, 552349), (78907, 246603), (82201, 236721), (87213, 223117)]