16988972

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4243}}^1$

素因数の和:4278

約数の個数: 48

約数和(自身を含む): 39927552

約数和(自身を除く): 22938580

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 4243, 8486, 16972, 29701, 46673, 55159, 59402, 93346, 110318, 118804, 186692, 220636, 326711, 386113, 606749, 653422, 772226, 1213498, 1306844, 1544452, 2426996, 4247243, 8494486, 16988972]

約数ペア:

[(1, 16988972), (2, 8494486), (4, 4247243), (7, 2426996), (11, 1544452), (13, 1306844), (14, 1213498), (22, 772226), (26, 653422), (28, 606749), (44, 386113), (52, 326711), (77, 220636), (91, 186692), (143, 118804), (154, 110318), (182, 93346), (286, 59402), (308, 55159), (364, 46673), (572, 29701), (1001, 16972), (2002, 8486), (4004, 4243)]