21285632

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 46284336

約数和(自身を除く): 24998704

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 67, 68, 73, 128, 134, 136, 146, 256, 268, 272, 292, 536, 544, 584, 1072, 1088, 1139, 1168, 1241, 2144, 2176, 2278, 2336, 2482, 4288, 4352, 4556, 4672, 4891, 4964, 8576, 9112, 9344, 9782, 9928, 17152, 18224, 18688, 19564, 19856, 36448, 39128, 39712, 72896, 78256, 79424, 83147, 145792, 156512, 158848, 166294, 291584, 313024, 317696, 332588, 626048, 665176, 1252096, 1330352, 2660704, 5321408, 10642816, 21285632]

約数ペア:

[(1, 21285632), (2, 10642816), (4, 5321408), (8, 2660704), (16, 1330352), (17, 1252096), (32, 665176), (34, 626048), (64, 332588), (67, 317696), (68, 313024), (73, 291584), (128, 166294), (134, 158848), (136, 156512), (146, 145792), (256, 83147), (268, 79424), (272, 78256), (292, 72896), (536, 39712), (544, 39128), (584, 36448), (1072, 19856), (1088, 19564), (1139, 18688), (1168, 18224), (1241, 17152), (2144, 9928), (2176, 9782), (2278, 9344), (2336, 9112), (2482, 8576), (4288, 4964), (4352, 4891), (4556, 4672)]