21294744

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:153

約数の個数: 128

約数和(自身を含む): 61689600

約数和(自身を除く): 40394856

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 19, 24, 34, 38, 41, 51, 57, 67, 68, 76, 82, 102, 114, 123, 134, 136, 152, 164, 201, 204, 228, 246, 268, 323, 328, 402, 408, 456, 492, 536, 646, 697, 779, 804, 969, 984, 1139, 1273, 1292, 1394, 1558, 1608, 1938, 2091, 2278, 2337, 2546, 2584, 2747, 2788, 3116, 3417, 3819, 3876, 4182, 4556, 4674, 5092, 5494, 5576, 6232, 6834, 7638, 7752, 8241, 8364, 9112, 9348, 10184, 10988, 13243, 13668, 15276, 16482, 16728, 18696, 21641, 21976, 26486, 27336, 30552, 32964, 39729, 43282, 46699, 52193, 52972, 64923, 65928, 79458, 86564, 93398, 104386, 105944, 129846, 140097, 156579, 158916, 173128, 186796, 208772, 259692, 280194, 313158, 317832, 373592, 417544, 519384, 560388, 626316, 887281, 1120776, 1252632, 1774562, 2661843, 3549124, 5323686, 7098248, 10647372, 21294744]

約数ペア:

[(1, 21294744), (2, 10647372), (3, 7098248), (4, 5323686), (6, 3549124), (8, 2661843), (12, 1774562), (17, 1252632), (19, 1120776), (24, 887281), (34, 626316), (38, 560388), (41, 519384), (51, 417544), (57, 373592), (67, 317832), (68, 313158), (76, 280194), (82, 259692), (102, 208772), (114, 186796), (123, 173128), (134, 158916), (136, 156579), (152, 140097), (164, 129846), (201, 105944), (204, 104386), (228, 93398), (246, 86564), (268, 79458), (323, 65928), (328, 64923), (402, 52972), (408, 52193), (456, 46699), (492, 43282), (536, 39729), (646, 32964), (697, 30552), (779, 27336), (804, 26486), (969, 21976), (984, 21641), (1139, 18696), (1273, 16728), (1292, 16482), (1394, 15276), (1558, 13668), (1608, 13243), (1938, 10988), (2091, 10184), (2278, 9348), (2337, 9112), (2546, 8364), (2584, 8241), (2747, 7752), (2788, 7638), (3116, 6834), (3417, 6232), (3819, 5576), (3876, 5494), (4182, 5092), (4556, 4674)]