21658938

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{3461}}^1$

素因数の和:3622

約数の個数: 32

約数和(自身を含む): 49852800

約数和(自身を除く): 28193862

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 149, 298, 447, 894, 1043, 2086, 3129, 3461, 6258, 6922, 10383, 20766, 24227, 48454, 72681, 145362, 515689, 1031378, 1547067, 3094134, 3609823, 7219646, 10829469, 21658938]

約数ペア:

[(1, 21658938), (2, 10829469), (3, 7219646), (6, 3609823), (7, 3094134), (14, 1547067), (21, 1031378), (42, 515689), (149, 145362), (298, 72681), (447, 48454), (894, 24227), (1043, 20766), (2086, 10383), (3129, 6922), (3461, 6258)]