18992248

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 42134400

約数和(自身を除く): 23142152

約数列:

[1, 2, 4, 8, 11, 19, 22, 37, 38, 44, 74, 76, 88, 148, 152, 209, 296, 307, 407, 418, 614, 703, 814, 836, 1228, 1406, 1628, 1672, 2456, 2812, 3256, 3377, 5624, 5833, 6754, 7733, 11359, 11666, 13508, 15466, 22718, 23332, 27016, 30932, 45436, 46664, 61864, 64163, 90872, 124949, 128326, 215821, 249898, 256652, 431642, 499796, 513304, 863284, 999592, 1726568, 2374031, 4748062, 9496124, 18992248]

約数ペア:

[(1, 18992248), (2, 9496124), (4, 4748062), (8, 2374031), (11, 1726568), (19, 999592), (22, 863284), (37, 513304), (38, 499796), (44, 431642), (74, 256652), (76, 249898), (88, 215821), (148, 128326), (152, 124949), (209, 90872), (296, 64163), (307, 61864), (407, 46664), (418, 45436), (614, 30932), (703, 27016), (814, 23332), (836, 22718), (1228, 15466), (1406, 13508), (1628, 11666), (1672, 11359), (2456, 7733), (2812, 6754), (3256, 5833), (3377, 5624)]