21554988

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19739}}^1$

素因数の和:19766

約数の個数: 48

約数和(自身を含む): 61904640

約数和(自身を除く): 40349652

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 1092, 19739, 39478, 59217, 78956, 118434, 138173, 236868, 256607, 276346, 414519, 513214, 552692, 769821, 829038, 1026428, 1539642, 1658076, 1796249, 3079284, 3592498, 5388747, 7184996, 10777494, 21554988]

約数ペア:

[(1, 21554988), (2, 10777494), (3, 7184996), (4, 5388747), (6, 3592498), (7, 3079284), (12, 1796249), (13, 1658076), (14, 1539642), (21, 1026428), (26, 829038), (28, 769821), (39, 552692), (42, 513214), (52, 414519), (78, 276346), (84, 256607), (91, 236868), (156, 138173), (182, 118434), (273, 78956), (364, 59217), (546, 39478), (1092, 19739)]