18899452

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:131

約数の個数: 96

約数和(自身を含む): 42900480

約数和(自身を除く): 24001028

約数列:

[1, 2, 4, 11, 13, 19, 22, 26, 37, 38, 44, 47, 52, 74, 76, 94, 143, 148, 188, 209, 247, 286, 407, 418, 481, 494, 517, 572, 611, 703, 814, 836, 893, 962, 988, 1034, 1222, 1406, 1628, 1739, 1786, 1924, 2068, 2444, 2717, 2812, 3478, 3572, 5291, 5434, 6721, 6956, 7733, 9139, 9823, 10582, 10868, 11609, 13442, 15466, 18278, 19129, 19646, 21164, 22607, 23218, 26884, 30932, 33041, 36556, 38258, 39292, 45214, 46436, 66082, 76516, 90428, 100529, 127699, 132164, 201058, 248677, 255398, 363451, 402116, 429533, 497354, 510796, 726902, 859066, 994708, 1453804, 1718132, 4724863, 9449726, 18899452]

約数ペア:

[(1, 18899452), (2, 9449726), (4, 4724863), (11, 1718132), (13, 1453804), (19, 994708), (22, 859066), (26, 726902), (37, 510796), (38, 497354), (44, 429533), (47, 402116), (52, 363451), (74, 255398), (76, 248677), (94, 201058), (143, 132164), (148, 127699), (188, 100529), (209, 90428), (247, 76516), (286, 66082), (407, 46436), (418, 45214), (481, 39292), (494, 38258), (517, 36556), (572, 33041), (611, 30932), (703, 26884), (814, 23218), (836, 22607), (893, 21164), (962, 19646), (988, 19129), (1034, 18278), (1222, 15466), (1406, 13442), (1628, 11609), (1739, 10868), (1786, 10582), (1924, 9823), (2068, 9139), (2444, 7733), (2717, 6956), (2812, 6721), (3478, 5434), (3572, 5291)]