21142060

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:151

約数の個数: 96

約数和(自身を含む): 50803200

約数和(自身を除く): 29661140

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 41, 46, 59, 76, 82, 92, 95, 115, 118, 164, 190, 205, 230, 236, 295, 380, 410, 437, 460, 590, 779, 820, 874, 943, 1121, 1180, 1357, 1558, 1748, 1886, 2185, 2242, 2419, 2714, 3116, 3772, 3895, 4370, 4484, 4715, 4838, 5428, 5605, 6785, 7790, 8740, 9430, 9676, 11210, 12095, 13570, 15580, 17917, 18860, 22420, 24190, 25783, 27140, 35834, 45961, 48380, 51566, 55637, 71668, 89585, 91922, 103132, 111274, 128915, 179170, 183844, 222548, 229805, 257830, 278185, 358340, 459610, 515660, 556370, 919220, 1057103, 1112740, 2114206, 4228412, 5285515, 10571030, 21142060]

約数ペア:

[(1, 21142060), (2, 10571030), (4, 5285515), (5, 4228412), (10, 2114206), (19, 1112740), (20, 1057103), (23, 919220), (38, 556370), (41, 515660), (46, 459610), (59, 358340), (76, 278185), (82, 257830), (92, 229805), (95, 222548), (115, 183844), (118, 179170), (164, 128915), (190, 111274), (205, 103132), (230, 91922), (236, 89585), (295, 71668), (380, 55637), (410, 51566), (437, 48380), (460, 45961), (590, 35834), (779, 27140), (820, 25783), (874, 24190), (943, 22420), (1121, 18860), (1180, 17917), (1357, 15580), (1558, 13570), (1748, 12095), (1886, 11210), (2185, 9676), (2242, 9430), (2419, 8740), (2714, 7790), (3116, 6785), (3772, 5605), (3895, 5428), (4370, 4838), (4484, 4715)]