19490988

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{991}}^1$

素因数の和:1158

約数の個数: 48

約数和(自身を含む): 49996800

約数和(自身を除く): 30505812

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 149, 298, 447, 596, 894, 991, 1639, 1788, 1982, 2973, 3278, 3964, 4917, 5946, 6556, 9834, 10901, 11892, 19668, 21802, 32703, 43604, 65406, 130812, 147659, 295318, 442977, 590636, 885954, 1624249, 1771908, 3248498, 4872747, 6496996, 9745494, 19490988]

約数ペア:

[(1, 19490988), (2, 9745494), (3, 6496996), (4, 4872747), (6, 3248498), (11, 1771908), (12, 1624249), (22, 885954), (33, 590636), (44, 442977), (66, 295318), (132, 147659), (149, 130812), (298, 65406), (447, 43604), (596, 32703), (894, 21802), (991, 19668), (1639, 11892), (1788, 10901), (1982, 9834), (2973, 6556), (3278, 5946), (3964, 4917)]